HEX(N_or_S) : HEX « String Functions « MySQL Tutorial

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MySQL Tutorial » String Functions » HEX

23. 15. 1. HEX(N_or_S)

If N_or_S is a number, returns a string representation of the hexadecimal value of N.

If N_or_S is a string, returns a hexadecimal string representation of N_or_S where each character in N_or_S is converted to two hexadecimal digits.


mysql>

mysql> SELECT HEX(255);

+----------+

| HEX(255) |

+----------+

| FF       |

+----------+

1 row in set (0.00 sec)



mysql>

23. 15. HEX
	23. 15. 1.	HEX(N_or_S)
	23. 15. 2.	HEX('abc');
	23. 15. 3.	SELECT HEX(CHAR(1,0)), HEX(CHAR(256));
	23. 15. 4.	SELECT HEX(CHAR(1,0,0)), HEX(CHAR(256*256));

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